Lavandula plant named ‘Bklvdab’

ABSTRACT

A new and distinct cultivar of  Lavandula  plant named ‘Bklvdab’, characterized by its compact, upright and somewhat outwardly spreading plant habit; freely branching growth habit; dense and bushy plant form; early and freely flowering habit; violet blue-colored flowers arranged in compact verticillasters; and good garden performance.

Botanical designation: Lavandula angustifolia.

Cultivar denomination: ‘BKLVDAB’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Lavandula plant, botanically known as Lavandula angustifolia and hereinafter referred to by the name ‘Bklvdab’.

The new Lavandula plant is a product of a planned breeding program conducted by the Inventor in Maasdijk, The Netherlands. The objective of the breeding program was to develop new compact Lavandula plants with uniform plant habit and attractive flower coloration.

The new Lavandula plant originated from an open-pollination in July, 2006 of Lavandula angustifolia ‘Lavance Purple’, not patented, as the female, or seed, parent with an unknown selection of Lavandula angustifolia. The new Lavandula plant was discovered and selected by the Inventor in August, 2007 as a single flowering plant within the progeny of the stated open-pollination in a controlled outdoor nursery environment in Maasdijk, The Netherlands.

Asexual reproduction of the new Lavandula by terminal cuttings in a controlled greenhouse environment in Maasdijk, The Netherlands since September, 2007 has shown that the unique features of this new Lavandula plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Lavandula have not been observed under all possible environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Bklvdab’. These characteristics in combination distinguish ‘Bklvdab’ as a new and distinct Lavandula plant:

-   -   1. Compact, upright and somewhat outwardly spreading plant         habit.     -   2. Freely branching growth habit; dense and bushy plant form.     -   3. Early and freely flowering habit.     -   4. Violet blue-colored flowers arranged in compact         verticillasters.     -   5. Good garden performance.

Plants of the new Lavandula differ from plants of the female parent, ‘Lavance Purple’ primarily in the following characteristics:

-   -   1. Plants of the new Lavandula are more vigorous than plants of         ‘Lavance Purple’.     -   2. Plants of the new Lavandula have larger flowers than plants         of ‘Lavance Purple’.     -   3. Flowers of plants of the new Lavandula are brighter in color         than flowers of plants of ‘Lavance Purple’.

Plants of the new Lavandula can be compared to plants of Lavandula angustifolia ‘Hidcote’, not patented. Plants of the new Lavandula differ primarily from plants of ‘Hidcote’ in the following characteristics:

-   -   1. Plants of the new Lavandula are shorter and more compact than         plants of ‘Hidcote’.     -   2. Flowers of plants of the new Lavandula are brighter in color         than flowers of plants of ‘Hidcote’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new Lavandula plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Lavandula plant.

The photograph on the first sheet comprises a side perspective view of a typical flowering plant of ‘Bklvdab’ grown in a container.

The photograph on the second sheet is a close-up view of typical developing and fully developed flowering stems and upper and lower surfaces of leaves of ‘Bklvdvlb’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs, following observations and measurements describe plants grown during the spring and summer in 12-cm containers in a glass-covered greenhouse in Maasdijk, The Netherlands and under cultural practices which approximate those generally used in commercial Lavandula production. Plants were 23 weeks old when the photographs and description were taken. Plants were pinched one time. During the production of the plants, day temperatures ranged from 15° C. to 22° C. and night temperatures ranged from 12° C. to 16° C. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Lavandula angustifolia ‘Bklvdab’. -   Parentage:     -   -   Female, or seed, parent.—Lavandula angustifolia ‘Lavance             Purple’, not patented.         -   Male, or pollen, parent.—Unknown selection of Lavandula             angustifolia, not patented. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots, summer.—About 28 days at 17° C. to             19° C.         -   Time to initiate roots, winter.—About 30 days at 18° C. to             19° C.         -   Time to produce a rooted young plant, summer.—About 45 to 48             days at 17° C. to 19° C.         -   Time to produce a rooted young plant, winter.—About 50 to 54             days at 17° C. to 19° C.         -   Root description.—Fine, fibrous; white in color.         -   Rooting habit.—Moderately freely branching; medium density. -   Plant description:     -   -   Form and growth habit.—Herbaceous perennial; compact,             upright and outwardly spreading plant habit; inverted             triangle; moderately vigorous growth habit.         -   Crop time.—After rooting, about 23 weeks are required to             produce finished flowering plants in 12-cm containers.         -   Branching habit.—Freely branching habit, dense and bushy             plant form; about nine primary lateral branches per plant;             pinching enhances lateral branch development.         -   Plant height.—About 32.3 cm.         -   Plant width (spread).—About 32.5 cm.         -   Lateral branch description.—Length: About 18.5 cm. Diameter:             About 2.5 mm. Internode length: About 1 cm. Strength:             Strong. Aspect: Upright to somewhat outwardly spreading.             Texture: Tomentose. Color, immature: Close to 147D. Color,             mature: Close to 199B.         -   Foliage description.—Arrangement: Opposite, simple; sessile.             Length: About 5.7 cm. Width: About 5 mm. Shape: Lanceolate.             Apex: Bluntly acute. Base: Cuneate. Margin: Entire. Texture,             upper and lower surfaces: Tomentose. Fragrance: Aromatic,             pungent. Venation pattern: Pinnate. Color: Developing             leaves, upper and lower surfaces: Close to 191A. Fully             expanded leaves, upper surface: Close to N137B; venation,             close to N137B. Fully expanded leaves, lower surface: Close             to 138A; venation, close to 138B. -   Flower description:     -   -   Flower arrangement and shape.—Single flowers arranged in             compact verticillasters; freely flowering habit, about 70             flowers per verticillaster; flowers salverform with a             two-lobed upper lip and a three-lobed lower lip.         -   Natural flowering season.—Long flowering period; flowering             continuous throughout the summer in The Netherlands; plants             begin flowering about 145 days after planting.         -   Flower longevity on the plant.—Flowers last about ten days             on the plant; flowers not persistent.         -   Fragrance.—None detected.         -   Flower buds.—Length: About 4 mm. Diameter: About 2 mm.             Shape: Oblong. Color: Close to 144D; towards the apex, close             to 147C; pubescence, close to 83C and 157D.         -   Inflorescence size.—Height: About 8.2 cm. Diameter: About             2.4 cm.         -   Flowers.—Diameter: About 6 mm. Depth (height): About 1 cm.         -   Petals.—Lip length: About 1 cm. Lip width: About 6 mm. Lip             shape: Roughly spatulate. Lip: Rounded. Lip margin: Entire.             Lip texture, upper and lower surfaces: Smooth, glabrous.             Color: When opening, upper surface: Lip, close to 91A; tube,             close to 85A. When opening, lower surface: Lip, close to             92B; tube, close to 85A. Fully opened, upper surface: Lip,             close to 91C; tube, close to 85A; color becoming closer to             94B to 94C with development. Fully opened, lower surface:             Lip, close to 92C; tube, close to 85A.         -   Flower bracts.—Arrangement: Each whorl of flowers subtended             by a dry flower bract. Length: About 3 mm. Width: About             5 mm. Shape: Broadly rhomboidal. Apex: Cuspidate. Base:             Cuneate. Margin: Entire. Texture, upper and lower surfaces:             Smooth, glabrous. Color, immature and mature, upper surface:             Close to 161B.         -   Sepals.—Arrangement: Five sepals fused into a campanulate             tube. Length: About 5 mm. Width: About 0.5 mm. Shape:             Lanceolate. Apex: Broadly acute. Margin: Entire. Texture,             upper surface: Smooth, glabrous. Texture, lower surface:             Tomentose. Color, immature and mature, upper surface: Close             to 144C. Color, immature and mature, lower surface: Close to             144D; towards the apex, close to 147C; pubescence, close to             83C and 157D.         -   Peduncles.—Length: About 21.6 cm. Diameter: About 2 mm.             Strength: Strong. Aspect: Mostly upright. Texture:             Tomentose. Color: Close to 138B; pubescence, close to 196D.         -   Pedicels.—Length: About 1 mm. Diameter: About 1 mm.             Strength: Moderately strong. Aspect: About 50° from             vertical. Texture: Tomentose. Color: Close to 145C.         -   Reproductive organs.—Stamens: Quantity per flower: Four.             Filament length: About 1 mm. Anther shape: Reniform. Anther             length: About 0.5 mm. Anther color: Close to 197B to 197D.             Pollen amount: Moderate. Pollen color: Close to 24A.             Pistils: Quantity per flower: One. Pistil length: About             5 mm. Stigma shape: Narrowly club-shaped. Stigma color:             Close to N187D. Style length: About 4 mm. Style color: Close             to 156D. Ovary color: Close to 146B.         -   Seeds and fruits.—Seed and fruit development have not been             observed on plants of the new Lavandula. -   Disease/pest resistance: Plants of the new Lavandula have not been     noted to be resistant to pathogens and pests common to Lavandula. -   Garden performance: Plants of the new Lavandula have exhibited good     tolerance to rain, wind and temperatures up to about 40° C. and are     hardy to USDA Hardiness Zone 7. 

It is claimed:
 1. A new and distinct Lavandula plant named ‘Bklvdab’ as illustrated and described. 